US20050284941A1 - Combined electromagnetic and optical communication system - Google Patents
Combined electromagnetic and optical communication system Download PDFInfo
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- US20050284941A1 US20050284941A1 US10/878,963 US87896304A US2005284941A1 US 20050284941 A1 US20050284941 A1 US 20050284941A1 US 87896304 A US87896304 A US 87896304A US 2005284941 A1 US2005284941 A1 US 2005284941A1
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- communication device
- bar code
- code symbol
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07766—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card comprising at least a second communication arrangement in addition to a first non-contact communication arrangement
- G06K19/07769—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card comprising at least a second communication arrangement in addition to a first non-contact communication arrangement the further communication means being a galvanic interface, e.g. hybrid or mixed smart cards having a contact and a non-contact interface
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06018—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking one-dimensional coding
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/08—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
- G06K19/083—Constructional details
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0266—Marks, test patterns or identification means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
- H05K1/165—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor incorporating printed inductors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
- H05K2201/09781—Dummy conductors, i.e. not used for normal transport of current; Dummy electrodes of components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
- H05K2201/09927—Machine readable code, e.g. bar code
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
- H05K2201/09936—Marks, inscriptions, etc. for information
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10098—Components for radio transmission, e.g. radio frequency identification [RFID] tag, printed or non-printed antennas
Definitions
- the invention relates generally to a communication system capable of communicating information electromagnetically and optically, and more particularly to a communication system having both electromagnetic and optical communication devices where at least a portion of each communication device is formed of the same material.
- a communication system includes both an electromagnetic (“EM”) communication device and an optical communication device where at least a portion of the EM communication device and at least a portion of the optical communication device are formed from the same material.
- EM electromagnetic
- the optical communication device includes a machine readable symbol, such as a bar code symbol.
- the EM communication device includes a radio frequency communication device, such as an RFID tag.
- a conductable ink is used to form at least a portion of the radio frequency communication device and at least a portion of the bar code symbol.
- At least a portion of the radio frequency communication device and at least a portion of the bar code symbol are both formed from a conductable foil through a subtractive process, such as etching.
- the bar code symbol is of a format providing for equal width spaces between bars.
- the optical communication device includes one or more alphanumeric symbols.
- the optical communication device includes one or more logos.
- the radio frequency communication device includes a memory which stores the same information encoded in the bar code symbol.
- the information stored in the memory of the radio frequency communication devices and encoded in the bar code symbol identify a product.
- a protective covering cover both the radio frequency communication device and the optical communication device, but the information encoded by the optical communication device can still be optically communicated through the protective covering.
- the radio frequency communication device and the optical communication device are mounted on a package designed to be opened such that when the package is opened as designed, the radio frequency communication device is damaged so that it no longer communicates.
- a communication system comprises an electromagnetic communication device and an optical communication device.
- the electromagnetic communication device includes at least an antenna.
- the optical communication device includes at least one machine readable symbol. At least a portion of the antenna and at least a portion of the machine readable symbol are formed from the same material. At least a portion of the antenna includes at least a portion of the machine readable symbol.
- a communication system comprises a radio frequency communication device and an optical communication device.
- the radio frequency communication device includes at least an antenna.
- the optical communication device includes at least a bar code symbol. At least a portion of the antenna and at least a portion of the bar code symbol are formed from the same material. At least a portion of the antenna includes at least a portion of the bar code symbol.
- a method provides a communications system that includes a radio frequency communications device and an optical communications device.
- the radio frequency communication device includes a communications controller, a memory, and an antenna.
- the optical communications device includes at least a bar code symbol.
- the communications controller and the memory of the radio frequency communications device are provided on a substrate.
- the antenna of the radio frequency communications device and the optical communications device are provided on the substrate using the same material for at least a portion of the antenna and at least a portion of the bar code symbol.
- a method provides a communications system that includes a radio frequency communications device and an optical communications device.
- the radio frequency communication device includes a communications controller, a memory, and an antenna.
- the optical communications device includes at least a bar code symbol.
- the communications controller and the memory of the radio frequency communications device are provided on a substrate.
- the antenna of the radio frequency communications device and the optical communications device are provided on the substrate using the same material for at least a portion of the antenna and at least a portion of the bar code symbol so that at least a portion of the antenna includes at least a portion of the bar code symbol.
- a conductable ink is used to provide at least a portion of the antenna of the radio frequency communication device and at least a portion of the bar code symbol.
- a conductable foil is used to provide at least a portion of the antenna of the radio frequency communication device and at least a portion of the bar code symbol.
- FIG. 1 is a block diagram showing the components of an embodiment of the invention
- FIG. 2 is an overhead view of an embodiment of the invention
- FIG. 3 is an overhead view of another embodiment of the invention.
- FIG. 4 is an overhead view of another embodiment of the invention, where the optical communication device comprises several parts;
- FIG. 5 is an overhead view of another embodiment of the invention, where the optical communication device comprises several parts including logos; and
- FIG. 6 is an overhead view of another embodiment of the invention, where the optical communication device comprises a bar code encoded in a format of equal width spaces.
- a combined electromagnetic-optical communication (“CEMOC”) system includes both an electromagnetic (“EM”) communication device and an optical communication device where at least a portion of the EM communication device and at least a portion of the optical communication device are formed from the same material.
- the electromagnetic communication device may be any device that communicates (e.g., sends information, receives information, or both) using electromagnetic wave energy, such as, for example, television, wireless telephone, a radio transmitter, a radio receiver, a radio transmitter, a radio transponder, or a radio frequency identification (“RFID”) tag.
- the electromagnetic communication device may include components such as circuitry for controlling communications and a memory for storing data to be transmitted.
- the optical communication device may be a device that stores and communicates information optically through its physical appearance, such as, human or machine readable symbols, including, for example, alphanumeric text, brand or corporate logos, or bar codes.
- EM and optical communication devices of the CEMOC system may be combined in a number of ways. According to one embodiment of the invention, EM communication device 20 and optical communication device 30 of CEMOC System 10 may be combined by forming them on a single substrate 40 , as shown in FIG. 1 .
- FIG. 2 is an overhead view of a CEMOC System 10 with the EM communication device comprising an RFID tag 202 and the optical communication device comprising a bar code 204 .
- RFID tag 202 may include an antenna 208 and an integrated circuit (“IC”) 206 that controls communication involving the RFID tag and includes a memory that may store data.
- IC integrated circuit
- RFID tag 202 such as antenna 208 , and bar code 204 may both be printed on substrate 40 using a metallic or other ink capable of conducting electromagnetic energy and an inkjet printer or other known printing device capable of printing using such ink.
- the IC 206 may be mounted onto substrate 40 before or after antenna 208 and bar code 204 are printed. In either case, IC 206 and antenna 208 are coupled so that IC 206 may transmit and/or receive data through antenna 208 .
- CEMOC System 10 may be formed through a printing technique involving etching.
- at least a portion of EM communication device 20 and at least a portion of optical communication device 30 may be formed from a conductable material by removing portions of the material so that what remains of the conductable material comprises at least a portion of the EM communication device and at least a portion of the optical communication device.
- a scribing laser which removes material as it burns, may be used to etch the antenna 208 and bar code 204 from a conductable foil.
- the antenna 208 and bar code 204 may then be fixed onto substrate 40 , e.g., using an adhesive.
- a sheet of foil may be adhered to substrate 40 first and then antenna 208 and bar code 204 etched from the foil.
- the IC 206 may be mounted onto substrate 40 so that IC 206 is coupled to the antenna in such a way as to be able to transmit and/or receive data through antenna 208 .
- FIG. 3 is an overhead view of a CEMOC System 15 where the EM communication device comprises an RFID tag including an IC 17 and an antenna 18 .
- Antenna 18 also functions as the optical communication device of CEMOC System 15 such that the physical appearance of antenna 18 stores and provides information optically.
- antenna 18 may be shaped in the form of a linear bar code.
- the CEMOC System with the combined antenna/optical communication device may be formed using similar techniques as described above in connection with FIG. 2 .
- at least a portion of the antenna and at least a portion of optical communication device 30 may be printed using conductable ink or etched from a conductable material.
- optical communication device 30 may be formed as a free-standing antenna, e.g., not formed on a substrate.
- the CEMOC System includes an antenna shaped in the form of a bar code
- two or more of the bars of the antenna/bar code may be connected so as to provide a continuous path coupled to the EM communication device.
- this continuous path should be of a suitable length and width and be formed of such conductable material so as to enable the continuous path to serve as a suitable antenna for the communication function being performed by the EM communication device, e.g., RFID tag communication.
- each bar of antenna/bar code 18 may be attached to the subsequent bar of antenna/bar code 18 at alternating ends in a snaking fashion.
- the optical communication device of the CEMOC system of the present invention may include one or more parts each of which may have a different appearance and store and convey different information.
- the optical communication devices include a single part, e.g., a bar code.
- optical communication device 30 includes a bar code 204 as well as human readable text.
- the different parts of optical communication device 30 may form a composite image, such as the EPC bar code shown in FIG. 3 .
- the different parts of optical communication device 30 need not represent related information.
- some parts of optical communication device 30 may include decorative symbols or brand or corporate logos.
- CEMOC System 15 shown in FIG. 5 includes an optical communication device with four parts, e.g., a linear bar code, text below the bar code, and a smaller and a larger instance of the corporate logo “SNX”. As shown in FIG. 5 , the linear bar code and the larger instance of the corporate logo form a continuous path to serve as the antenna for the EM communication device which, in FIG. 5 , is an RFID tag.
- the parts may all be formed at the same time or they may be formed at different times.
- decorative symbols or logos may be printed on the substrate prior to the printing of the bar code part.
- human readable text may be added to the substrate after the printing of the bar code.
- the optical communication device of the CEMOC system include a linear bar code.
- non-linear bar codes may be used as well.
- an RSS bar code may be used in the embodiments shown in either FIG. 2 or 3 .
- bar code formats may provide certain advantages. For example, where a subtractive technique is used to print the bar code, e.g., etching, a bar code of a format providing for equal width spaces could be created more efficiently and quickly than a bar code of a format not providing for equal width spaces.
- the bar code shown in FIG. 5 is of the UPC (A) format which allows for four different thicknesses of background space.
- UPC UPC
- CEMOC System 15 includes optical communication device in the form of antenna/bar code 18 that is coded in the Code 25 bar code format.
- This bar code format uses only equal width spaces between bars. Consequently, a laser set to etch a predetermined width need only make a single pass to etch each space.
- the CEMOC system of the present invention may provide information to users both visually and through electromagnetic waves.
- the optical communication device encodes certain information as a bar code
- a user may retrieve the encoded information using known bar code scanners that use conventional line-of-sight scanning techniques, such as laser, CCD, and wand type scanners.
- the electromagnetic communication device is an RFID tag
- a standard RFID reader may be used to read the information stored in the RFID tag's memory.
- the substrate may comprise a product tag or label.
- the substrate may comprise the packaging for a product.
- any substrate used should not interfere with the functionality of the EM and optical communication devices of the CEMOC system.
- the optical communication device includes a bar code
- the surface of the substrate should be able to serve as a background for the bar code.
- At least a portion of the EM communication device and at least a portion of the optical communication device of the CEMOC system of the present invention may be formed by, for example, printing them directly on a product tag, label or packaging using conductable ink.
- at least a portion of the EM communication device and at least a portion of the optical communication device of the CEMOC system of the present invention may be formed by, for example, affixing a conductable material, e.g., a copper foil, directly on a product tag, label or packaging, and removing, e.g., by etching, unnecessary material so that the material that remains forms the portions of the EM and optical communication devices.
- a protective layer is applied over the CEMOC system that does not interfere with the a user's communication with either communication device of the CEMOC system.
- the protective layer may be placed over the CEMOC system and affixed to the CEMOC system and/or the substrate. So as not to interfere with the communication involving the optical communication device, the protective layer may be clear. Alternatively, the protective layer may be mostly opaque with a clear portion covering the optical communication device.
- the CEMOC system could be combined or mounted on a product package meant for retail, e.g., a box of breakfast cereal, and placed on the outside and bottom of the package at the location where a bar code identifying the product would conventionally be found.
- the protective layer would protect the integrity of the CEMOC system while allowing the optical communication device to be read, for example, in order to identify the product at a checkout counter.
- the CEMOC system of the present invention may be combined or mounted on a substrate in such a way as to be rendered ineffective during the course of normal intended use.
- the CEMOC system is used as a product package identifier, after the product is sold, the identifier is no longer needed and, in such cases, it may be desirable for the CEMOC system to no longer function after the sale.
- the CEMOC system includes an RFID tag, this may be accomplished by combining or mounting the CEMOC system on the product packaging over an area at which the package is to be opened.
- the CEMOC system could combined or mounted directly over the tear-open mouth of a package so that when the package is opened, the integrity of the RFID tag is destroyed so that RFID tag can no longer transmit its stored information.
- the EM and optical communication devices of the CEMOC system of the present invention may store the same information, in certain circumstances it may be desirable for them to store different information.
- the optical communication device stores and conveys information through its physical appearance, e.g., as with a bar code
- the EM communication device stores its information in a memory
- the EM communication device's information may be changeable.
- the CEMOC system includes an RFID tag and a bar code
- the bar code may encode a product ID and the memory of the RFID tag may store shipping instructions for the product.
- the CEMOC system of the present invention described above provides many advantages. Where it is desirable to have the functionality of both an electromagnetic communication device, e.g., RFID tag, and an optical communication device, e.g., bar code, both of these may be printed during the same operation according to the techniques described above. Creating both an electromagnetic communication device, e.g., RFID tag, and an optical communication device, e.g., bar code, in the same operation easily allows for both devices to be encoded with the same information at one time.
- the CEMOC system of the present invention may also be advantageous for technology migration.
- the CEMOC system is a product package identifier and includes an RFID tag and a bar code
- the same information could be encoded in both the RFID tag and bar code, thereby allowing users to extract the information using established bar code systems or newer RFID reading systems. This would allow for easy transition for a user migrating from a bar code to an RFID system.
Abstract
Description
- A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent files or records, but otherwise reserves all copyrights whatsoever.
- The invention relates generally to a communication system capable of communicating information electromagnetically and optically, and more particularly to a communication system having both electromagnetic and optical communication devices where at least a portion of each communication device is formed of the same material.
- According to an embodiment of the present invention, a communication system is provided that includes both an electromagnetic (“EM”) communication device and an optical communication device where at least a portion of the EM communication device and at least a portion of the optical communication device are formed from the same material.
- According to an embodiment of the invention, the optical communication device includes a machine readable symbol, such as a bar code symbol.
- According to another embodiment of the invention, the EM communication device includes a radio frequency communication device, such as an RFID tag.
- According to one embodiment of the invention, a conductable ink is used to form at least a portion of the radio frequency communication device and at least a portion of the bar code symbol.
- According to another embodiment of the invention, at least a portion of the radio frequency communication device and at least a portion of the bar code symbol are both formed from a conductable foil through a subtractive process, such as etching.
- According to another embodiment of the invention, the bar code symbol is of a format providing for equal width spaces between bars.
- According to another embodiment of the invention, the optical communication device includes one or more alphanumeric symbols.
- According to another embodiment of the invention, the optical communication device includes one or more logos.
- According to another embodiment of the invention, the radio frequency communication device includes a memory which stores the same information encoded in the bar code symbol.
- According to another embodiment of the invention, the information stored in the memory of the radio frequency communication devices and encoded in the bar code symbol identify a product.
- According to one embodiment of the invention, a protective covering cover both the radio frequency communication device and the optical communication device, but the information encoded by the optical communication device can still be optically communicated through the protective covering.
- According to another embodiment of the invention, the radio frequency communication device and the optical communication device are mounted on a package designed to be opened such that when the package is opened as designed, the radio frequency communication device is damaged so that it no longer communicates.
- According to an embodiment of the invention, a communication system comprises an electromagnetic communication device and an optical communication device. The electromagnetic communication device includes at least an antenna. The optical communication device includes at least one machine readable symbol. At least a portion of the antenna and at least a portion of the machine readable symbol are formed from the same material. At least a portion of the antenna includes at least a portion of the machine readable symbol.
- According to an embodiment of the invention, a communication system comprises a radio frequency communication device and an optical communication device. The radio frequency communication device includes at least an antenna. The optical communication device includes at least a bar code symbol. At least a portion of the antenna and at least a portion of the bar code symbol are formed from the same material. At least a portion of the antenna includes at least a portion of the bar code symbol.
- In an embodiment of the invention, a method provides a communications system that includes a radio frequency communications device and an optical communications device. The radio frequency communication device includes a communications controller, a memory, and an antenna. The optical communications device includes at least a bar code symbol. According to the method, the communications controller and the memory of the radio frequency communications device are provided on a substrate. Also, the antenna of the radio frequency communications device and the optical communications device are provided on the substrate using the same material for at least a portion of the antenna and at least a portion of the bar code symbol.
- According to another embodiment of the invention, a method provides a communications system that includes a radio frequency communications device and an optical communications device. The radio frequency communication device includes a communications controller, a memory, and an antenna. The optical communications device includes at least a bar code symbol. According to the method, the communications controller and the memory of the radio frequency communications device are provided on a substrate. Also, the antenna of the radio frequency communications device and the optical communications device are provided on the substrate using the same material for at least a portion of the antenna and at least a portion of the bar code symbol so that at least a portion of the antenna includes at least a portion of the bar code symbol.
- According to another embodiment of the invention, a conductable ink is used to provide at least a portion of the antenna of the radio frequency communication device and at least a portion of the bar code symbol.
- According to another embodiment of the invention, a conductable foil is used to provide at least a portion of the antenna of the radio frequency communication device and at least a portion of the bar code symbol.
- The invention is illustrated in the figures of the accompanying drawings, which are meant to be exemplary and not limiting, and in which like references are intended to refer to like or corresponding parts.
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FIG. 1 is a block diagram showing the components of an embodiment of the invention; -
FIG. 2 is an overhead view of an embodiment of the invention; -
FIG. 3 is an overhead view of another embodiment of the invention; -
FIG. 4 is an overhead view of another embodiment of the invention, where the optical communication device comprises several parts; -
FIG. 5 is an overhead view of another embodiment of the invention, where the optical communication device comprises several parts including logos; and -
FIG. 6 is an overhead view of another embodiment of the invention, where the optical communication device comprises a bar code encoded in a format of equal width spaces. - According to an embodiment of the present invention, a combined electromagnetic-optical communication (“CEMOC”) system includes both an electromagnetic (“EM”) communication device and an optical communication device where at least a portion of the EM communication device and at least a portion of the optical communication device are formed from the same material. The electromagnetic communication device may be any device that communicates (e.g., sends information, receives information, or both) using electromagnetic wave energy, such as, for example, television, wireless telephone, a radio transmitter, a radio receiver, a radio transmitter, a radio transponder, or a radio frequency identification (“RFID”) tag. The electromagnetic communication device may include components such as circuitry for controlling communications and a memory for storing data to be transmitted. The optical communication device may be a device that stores and communicates information optically through its physical appearance, such as, human or machine readable symbols, including, for example, alphanumeric text, brand or corporate logos, or bar codes.
- The EM and optical communication devices of the CEMOC system may be combined in a number of ways. According to one embodiment of the invention,
EM communication device 20 andoptical communication device 30 of CEMOC System 10 may be combined by forming them on asingle substrate 40, as shown inFIG. 1 . - This formation of CEMOC System 10 may be accomplished in a number of ways. According to one embodiment of the invention, at least a portion of
EM communication device 20 and at least a portion ofoptical communication device 30 may be formed from conductable ink by printing them onsubstrate 40. For example,FIG. 2 is an overhead view of aCEMOC System 10 with the EM communication device comprising anRFID tag 202 and the optical communication device comprising abar code 204.RFID tag 202 may include anantenna 208 and an integrated circuit (“IC”) 206 that controls communication involving the RFID tag and includes a memory that may store data. At least a portion ofRFID tag 202, such asantenna 208, andbar code 204 may both be printed onsubstrate 40 using a metallic or other ink capable of conducting electromagnetic energy and an inkjet printer or other known printing device capable of printing using such ink. The IC 206 may be mounted ontosubstrate 40 before or afterantenna 208 andbar code 204 are printed. In either case, IC 206 andantenna 208 are coupled so that IC 206 may transmit and/or receive data throughantenna 208. - Another way in which CEMOC System 10 may be formed is through a printing technique involving etching. According to another embodiment of the invention, at least a portion of
EM communication device 20 and at least a portion ofoptical communication device 30 may be formed from a conductable material by removing portions of the material so that what remains of the conductable material comprises at least a portion of the EM communication device and at least a portion of the optical communication device. For example, referring again toFIG. 2 , a scribing laser, which removes material as it burns, may be used to etch theantenna 208 andbar code 204 from a conductable foil. Theantenna 208 andbar code 204 may then be fixed ontosubstrate 40, e.g., using an adhesive. Alternatively, a sheet of foil may be adhered tosubstrate 40 first and thenantenna 208 andbar code 204 etched from the foil. Before or afterantenna 208 andbar code 204 are formed, theIC 206 may be mounted ontosubstrate 40 so thatIC 206 is coupled to the antenna in such a way as to be able to transmit and/or receive data throughantenna 208. - Another way in which the EM and optical communication devices of the CEMOC system may be combined is for the optical communication device to be coupled to the EM communication device and to function as an antenna for the EM communication device. For example,
FIG. 3 is an overhead view of aCEMOC System 15 where the EM communication device comprises an RFID tag including anIC 17 and anantenna 18.Antenna 18 also functions as the optical communication device ofCEMOC System 15 such that the physical appearance ofantenna 18 stores and provides information optically. For example, as shown inFIG. 3 ,antenna 18 may be shaped in the form of a linear bar code. - The CEMOC System with the combined antenna/optical communication device may be formed using similar techniques as described above in connection with
FIG. 2 . Thus, at least a portion of the antenna and at least a portion ofoptical communication device 30 may be printed using conductable ink or etched from a conductable material. Also,optical communication device 30 may be formed as a free-standing antenna, e.g., not formed on a substrate. - Where the CEMOC System includes an antenna shaped in the form of a bar code, two or more of the bars of the antenna/bar code may be connected so as to provide a continuous path coupled to the EM communication device. As is known by those in the art, this continuous path should be of a suitable length and width and be formed of such conductable material so as to enable the continuous path to serve as a suitable antenna for the communication function being performed by the EM communication device, e.g., RFID tag communication.
- The bars of the bar code may be connected in any manner that does not interfere with the ability of a bar code scanner to effectively read the antenna as a bar code. For example, as shown in
FIG. 3 , each bar of antenna/bar code 18 may be attached to the subsequent bar of antenna/bar code 18 at alternating ends in a snaking fashion. - The optical communication device of the CEMOC system of the present invention may include one or more parts each of which may have a different appearance and store and convey different information. For example, in
FIGS. 2 and 3 , the optical communication devices include a single part, e.g., a bar code. In theexample CEMOC System 10 ofFIG. 4 ,optical communication device 30 includes abar code 204 as well as human readable text. The different parts ofoptical communication device 30 may form a composite image, such as the EPC bar code shown inFIG. 3 . However, the different parts ofoptical communication device 30 need not represent related information. Also, some parts ofoptical communication device 30 may include decorative symbols or brand or corporate logos. - Where the CEMOC System includes an optical communication device that also functions as an antenna for the EM communication device, two or more of the parts of the optical communication device may form a continuous path to serve as the antenna. For example,
CEMOC System 15 shown inFIG. 5 includes an optical communication device with four parts, e.g., a linear bar code, text below the bar code, and a smaller and a larger instance of the corporate logo “SNX”. As shown inFIG. 5 , the linear bar code and the larger instance of the corporate logo form a continuous path to serve as the antenna for the EM communication device which, inFIG. 5 , is an RFID tag. - Where the optical communication device of the CEMOC system includes several parts, the parts may all be formed at the same time or they may be formed at different times. For example, decorative symbols or logos may be printed on the substrate prior to the printing of the bar code part. In another example, human readable text may be added to the substrate after the printing of the bar code.
- In the examples shown above, the optical communication device of the CEMOC system include a linear bar code. However, non-linear bar codes may be used as well. For example, an RSS bar code may be used in the embodiments shown in either
FIG. 2 or 3. - Also, different bar code formats may provide certain advantages. For example, where a subtractive technique is used to print the bar code, e.g., etching, a bar code of a format providing for equal width spaces could be created more efficiently and quickly than a bar code of a format not providing for equal width spaces. For example, the bar code shown in
FIG. 5 is of the UPC (A) format which allows for four different thicknesses of background space. Thus, in a laser etching process where the laser is set to etch a predetermined width, several passes may be required to etch a space depending on the width of the space that has been coded in that bar code. In the example shown inFIG. 6 ,CEMOC System 15 includes optical communication device in the form of antenna/bar code 18 that is coded in the Code 25 bar code format. This bar code format uses only equal width spaces between bars. Consequently, a laser set to etch a predetermined width need only make a single pass to etch each space. - Having both optical and electromagnetic communication devices, the CEMOC system of the present invention as described above may provide information to users both visually and through electromagnetic waves. For example, where the optical communication device encodes certain information as a bar code, a user may retrieve the encoded information using known bar code scanners that use conventional line-of-sight scanning techniques, such as laser, CCD, and wand type scanners. Where the electromagnetic communication device is an RFID tag, a standard RFID reader may be used to read the information stored in the RFID tag's memory.
- Where the CEMOC system of the present invention described above is combined on or mounted on a substrate, any type of substrate capable of supporting both the EM communication device and the optical communication device of the CEMOC system may be used. For example, the substrate may comprise a product tag or label. In addition, the substrate may comprise the packaging for a product.
- Any substrate used should not interfere with the functionality of the EM and optical communication devices of the CEMOC system. For example, where the optical communication device includes a bar code, the surface of the substrate should be able to serve as a background for the bar code.
- Thus, using the printing techniques described above, at least a portion of the EM communication device and at least a portion of the optical communication device of the CEMOC system of the present invention may be formed by, for example, printing them directly on a product tag, label or packaging using conductable ink. Alternatively, at least a portion of the EM communication device and at least a portion of the optical communication device of the CEMOC system of the present invention may be formed by, for example, affixing a conductable material, e.g., a copper foil, directly on a product tag, label or packaging, and removing, e.g., by etching, unnecessary material so that the material that remains forms the portions of the EM and optical communication devices.
- Where the CEMOC system is used in environments exposing it to physical or environmental stress, it may be desirable to protect it from such stress. According to an embodiment of the invention, a protective layer is applied over the CEMOC system that does not interfere with the a user's communication with either communication device of the CEMOC system. For example, where the CEMOC system is combined on or mounted on a substrate, the protective layer may be placed over the CEMOC system and affixed to the CEMOC system and/or the substrate. So as not to interfere with the communication involving the optical communication device, the protective layer may be clear. Alternatively, the protective layer may be mostly opaque with a clear portion covering the optical communication device.
- Thus, for example, the CEMOC system could be combined or mounted on a product package meant for retail, e.g., a box of breakfast cereal, and placed on the outside and bottom of the package at the location where a bar code identifying the product would conventionally be found. The protective layer would protect the integrity of the CEMOC system while allowing the optical communication device to be read, for example, in order to identify the product at a checkout counter.
- If desired, the CEMOC system of the present invention may be combined or mounted on a substrate in such a way as to be rendered ineffective during the course of normal intended use. For example, where the CEMOC system is used as a product package identifier, after the product is sold, the identifier is no longer needed and, in such cases, it may be desirable for the CEMOC system to no longer function after the sale. Where the CEMOC system includes an RFID tag, this may be accomplished by combining or mounting the CEMOC system on the product packaging over an area at which the package is to be opened. For example, the CEMOC system could combined or mounted directly over the tear-open mouth of a package so that when the package is opened, the integrity of the RFID tag is destroyed so that RFID tag can no longer transmit its stored information.
- Although the EM and optical communication devices of the CEMOC system of the present invention may store the same information, in certain circumstances it may be desirable for them to store different information. For example, since the optical communication device stores and conveys information through its physical appearance, e.g., as with a bar code, it may be possible for information encoded in the optical communication device to be fixed. However, since the EM communication device stores its information in a memory, the EM communication device's information may be changeable. As such, it may be desirable for the information stored in the EM communication device's memory to supplement the information stored in the optical communication device. For example, where the CEMOC system includes an RFID tag and a bar code, the bar code may encode a product ID and the memory of the RFID tag may store shipping instructions for the product.
- The CEMOC system of the present invention described above provides many advantages. Where it is desirable to have the functionality of both an electromagnetic communication device, e.g., RFID tag, and an optical communication device, e.g., bar code, both of these may be printed during the same operation according to the techniques described above. Creating both an electromagnetic communication device, e.g., RFID tag, and an optical communication device, e.g., bar code, in the same operation easily allows for both devices to be encoded with the same information at one time.
- The CEMOC system of the present invention may also be advantageous for technology migration. For example, where the CEMOC system is a product package identifier and includes an RFID tag and a bar code, the same information could be encoded in both the RFID tag and bar code, thereby allowing users to extract the information using established bar code systems or newer RFID reading systems. This would allow for easy transition for a user migrating from a bar code to an RFID system.
- While the invention has been described and illustrated in connection with preferred embodiments, many variations and modifications as will be evident to those skilled in this art may be made without departing from the spirit and scope of the invention, and the invention is thus not to be limited to the precise details of methodology or construction set forth above as such variations and modifications are intended to be included within the scope of the invention. Except to the extent necessary or inherent in the processes themselves, no particular order to steps or stages of methods or processes described in this disclosure, including the Figures, is implied. In many cases the order of process steps may be varied without changing the purpose, effect or import of the methods described.
Claims (44)
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CR8880A CR8880A (en) | 2004-06-28 | 2007-01-26 | COMBINED ELECTROMAGNETIC AND OPTICAL COMMUNICATION SYSTEM |
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Also Published As
Publication number | Publication date |
---|---|
CN100517365C (en) | 2009-07-22 |
AU2005260614A1 (en) | 2006-01-12 |
CN1993699A (en) | 2007-07-04 |
US7284704B2 (en) | 2007-10-23 |
WO2006004909A3 (en) | 2007-01-11 |
WO2006004909A2 (en) | 2006-01-12 |
EP1782333A2 (en) | 2007-05-09 |
ECSP077206A (en) | 2007-02-28 |
CR8880A (en) | 2013-09-03 |
JP2008504629A (en) | 2008-02-14 |
EP1782333A4 (en) | 2009-07-22 |
BRPI0512576A (en) | 2008-03-25 |
KR20070041535A (en) | 2007-04-18 |
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